Replaces OEM # 02DL028, 02DL029, 5B10W13901, 5B10W13902, L18C6P90, L18M6P90, SB10K97664, SB10T83145, SB10T93144 Fits: LENOVO THINKPAD P53, THINKPAD P53 20QN, THINKPAD P53 20QQ Specs: 11.25V, 90WHR, 8000MAH, 6 CELL Brand New GreenTech replacement battery - 6 Month Replacement Warranty Each product has undergone rigorous testing to ensure the correct voltage, circuit protection, stable current, low self-discharge and CE / FCC / RoHS Certified for safety